Bending press for tie-plate flanges



Nov. 12, 1929. M. OVESTRUD 1,735,785

- BENDING PRESS FOR TIE PLATE FLANGES Filed April 29, 1925 2 Sheets-Sheet 1 Nov. 12, 1929. M. OVESTRUD BENDING PRESS FOR TIE PLATE FLANGES Filed April 29, 1925 2 Sheets-Sheet 2 Patented Nov. 12, 1929 UNITE STATES or MINNESOTA.

MELVINOVESTRUD, or STILLWATER, MINNESOTA, Assrenon. crown-HA F TO 'rwriv CITY ronen & FOUNDRY COMPANY, or STILLWATER, MINNESOTA,A conronnrron SENDING- rnnss ron TI -PLATE" FLANGES Application filed April 29, 192'5.-Seria1 No. 26,670.

' My invention relates to improvements in presses for bending into jaw forming rela tion'the flanges of tie-plate sections of the type comprising a platform member havlng a perpendicular flange thereon;

A certain tie-plate known as the Barrett tie-plate and rail anchor and disclosed in Letters Patent No. 1,171,581, Feb. 15, 1916, to Barrett comprises a plate or platform having a jaw thereon for engaging the upper surface of the base of a rail resting on the platform, said platform being apertured to receive spikes for anchoring the tie-plate and forforcing a'rail into wedging engagement with said jaw. Inone method of formlng the Barrett type of'tie-plate, apertured sec tions are struck transversely from along blank comprising a body plate formed with a perpendicular flange thereon and extending longitudinally of the same. The flangemember of such tie-plate secti on is then bent to turn the outer portion of the flange member into near parallelism with the body plate portion or platform, whereby said flange member is resolvedinto a jaw for gripping a rail base in a wedging manner.

An object of the present-invention is to provide a simple and durable press mechanism for quickly, easily and accurately bending such flanges of such tie-plate sections following the heating of said flanges.

lVith the foregoing and other objects'in view, which will appear in the followingdescript-ion, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter de-- scribed and claimed. I

In the drawings, Fig. 1 is anielevational fragmentary view of a press embodying my.

invention, a portion of the bed of the press being broken away to disclose parts that otherwise would be concealed; Fig, 2 is, a vertical sectional view taken on the line 2- 2 of-Fig. 1; Fig. 3 is a similar view taken on the line 3-3 of Fig. 2 ,Fig. 4 isa transverse sectional view in detail, the same being taken on the line 44 of Fig. 3; Fig. 5 is an eleva-- tional view in detail and particularly illus-- trating the spacing-die, and pla te ejector both in position diflerent from that shown in l; and 6 i p rspectivei view of 3 5 pleted tie-plate and rail anchor. V Referrin to the drawings, it will be seen that the illustrated'embodiment of my in-f vent-ion includes ,a frame 10, bed llthereon and a ram 12 reciprocablevertically above said bed," all of which parts are common to the ordinary trip-press. Supported on the bed '11. isan anvil structure A comprising a block 13, an anvil frame 14, anda face plate 15. The body of the anvil frame 14-is bolted to the block 13, said frame14 being formed witha pair of depending arms 14:, each provided with a lugl l? which is bolted to the bed 11 of the press. The anvil face plate 15 is supported byand bolted. to saidanvil;

frame 1 1, theworking surface ofsaid plate 15, being inclined about thirtydegrees from i the vertical. Loosely hinged 'on a bolt 16 passing through-the arms 14? of the anvil 1? at the'upper edge of whichis a j aw-form-j ing and spacingdie member 18. An arm '19 iszrigidly fastened at its lower end to the mounting 17 said arm 19 being extended considerably above the anvilstructure A." A Y spring 20, stretched; between the arm 19 and 'r the frame 10 of the press acts, through saidv like portion 190f the arm. 19, holds said arm 9 f I against the action of said .spring'20 with the die 1 member} 18 -swung away from the face plate 15. f The. die member18bein'gthus disposed, the body plate 22 .of a tie-plate section V B may be insertedfreely betweenjsaid mem ber 18 andthe faceplate 15.1 Placed with the back of said body plate 22 against the anvil faceplate '15 the-flange 23 of thetieplate sectionj over-reaches the upper edge of the die member'lS and hangs upon the same. Keyedin the underside of the ram 12 and depending therefrom is a punch block'2 1, the V portions 24*, 24? thereof complementingthe upper edge 18? and side-18P-of the spacing or V aw forming die 18. The tripping of the press, which is accomplished min V c 70 I frame 14,11s an upwardly extendedmountlng 1 to rain 12, but catches beneath said shoulder the usual manner by conventional means, not shown, results in the downwardcthrust V of the ram 12. In the" initial stage of its downward throw, the ram releases the arm I 19 (Fig. 1), the pin 21 thereon being at that and clamping said section against the face plate 15. Continuingdownward the punch block 24 strikesthe flange 23, which is heated for bending, and turns said flangedown into conformity with the spacing die 18, the same spacing'the-flange with respect to the body plate 22 (Figs. 5 and 6 'Beturning to elevated position, the ram 12, again acting through the arm 19, swings the die 18 away fromtheface plate 15'far enoughto permit 'of the removal vof'the finished tie-plate and the application tothe die of a new tie-plate section.

. The grip of a bent flange 23 upon the spacing 'die'18 being at times too strong to permit of Y the 'convenient removal of the formed tie-plate through the medium of .a pair of tongs, it is desirable to forcibly breakthe grip between the flange and die and this I accomplish'by means now to be described; A bolt 25 reaching through the arms 14* of the anvil frame 14 provides'a pivot for the head of'a lever26 upon which an ejector lug 27 is formed. 'Said lever26 reaching downward from the pivot 25', then horizontally therefrom, is stopped at' its lowermost lifting limit by engagement with theblock 13.

At such limit of movement of said lever 26,

the ejector lug-27 rests slightly beneath the lower} edge of the body plate 22 of a tie-plate section B hanging by its flange 23 ontheydie 18-"(Fig. 1). The free endof the lever '26 slidablyengages the edge of a bar 28 hinged to and depending from the ram 12, such engagement being yieldingly maintained by means ofa spring 29 stretched between said bar 28 and frame 10 and operating to tilt said bar toward said lever. A catch 29 on the-bar 29fratchet-s over ashoulder 26 on the lever 26 during the downward stroke of the on the "upward stroke of said ram.

With said Tcatch'29f thus hooking under the shoulder 26f, the lever 26 is swung 'upwardandthe ejector lu 27 forced against the body plate 22 of" the tie-plate B with the result that the grip of the bent flange 23'on the die'18' is brokenand said'tie-plate thus y freed for removalfroln the press (Fig. 5).

The upward throw of the lever 26 need only be veryslight' andI provide a simple method .of releasing the catch 29 from the shoulder 26 -o'n said lever. j finger 26 depending fromithe free end of the lever 26 engages the bar 28 uponslight change in-theangularity' bar'2 8 continues upward with the ram 12 r and the lever 26, weighted sufficiently in op- I position to the action of the spring 29, falls back by gravity to its lowerlimitof move-i ment. Changes in the specific", form otmy invention,.as'herein disclosed, may be made within the scope of what is claimed without departing frointhe spirit' of my invention.

Having described my invention, what I claim as ,newand desire to protect by Letters Patent is: I 1 3 1 1. A press for bending into jaw forming relation the flanges of tie-plate sections of the type comprising a body plate'having aperpendicular flange thereon, said press including aframe, an anvil structure thereon, a ram reciprocable vertically thereover, said structure presenting a working surface inclined from the vertical, a mounting hinged at the lowerside of the anvil structure, a jaw spac-' ing die carried by said mounting, said die providing a hanger for engagement beneath th'eflange of a tie-plate sectionplaced withthe body plate thereof between said anvil surface and die, an arm rising from said mounting, a spring acting upon said arm, to swing the die against the body plate of a tie-plate section and to c'lamp'the same against the anvil, a projection on the 'ra'm, said arm having a cam-like portion adaptedtobe engaged by said projection on the upward s-trokeof the ram, whereby the arm istiltetl against the action of said spring to' swing" the die away-from said anvil surface, a bending punch on the ram, the same complementing the spacing die" and adapted upon the descent of said rain to bend said flange over said die, a'leiver pivoted lation the flanges of tie-plate sections of the" type comprising'a body plate having a perpendlcular flange thereon, sald press includinga frame, an anvil supported thereon, a ram relc'iprocable vertically above the anvil, the face of said anvil being inclined from the vertical, a hingedly mountedjj aw spacing die adj acent said face o-f'said'anvil, said dieprovidinga hanger for the flange ofa tie-plate section placedwith the body-plate thereof. between on theanvil structure, an ejector lug on said Said anvil and die, a bending punch on the ram, the same complementing-the spacing die and adapted, upon the descent of said ram, to

bend said flange over said die, an ejector for lifting a formed tie-plate from said die, means for swinging the die and means for operating the ejector, both of said means being actuate perpendicular flange thereon, said press ineluding a frame, an anvil supported thereon, a ram reciprocable vertically above the anvil, the face of said anvil being inclined from the vertical, a jaw spacing die, a hinged mounting for the die, means for swinging the mounting, said die providing a hanger for the flange of a tie-plate section placed with the body plate thereof between said anvil and die, said mounting swinging means being adapted to clamp the die against the body plate of the section so placed, and a bending punch on the ram, the same complementing the spacer die and adapted, upon the descent of said ram, to bend said flange over said die, and an ejector adapted to engage beneath the formed tieplate section and to lift the same from said die.

4. A press for bending into jaw forming relation the flanges of tie-plate sections of the type comprising a body plate having a perpendicular flange thereon, said press includ ing a frame, an anvil supported thereon, a ram reciprocable vertically above the anvil, the face of said anvil being inclined from the vertical, a j aw spacing die, a hinged mounting for the die, means for swinging the mounting, said die providing a hanger for the flange of a tie-plate section placed with the body plate thereof between said anvil and die, said mounting swinging means being adapted to clamp the die against the body plate of the section so placed, and a bending punch on the ram, the same complementing the spacer die and adapted, upon the descent of said ram, to bend said flange over said die.

5. A press for bending into jaw forming relation the flanges of tie-plate sections of the type comprising a body plate having a perpendicular flange thereon, said press including a frame, a reciprocable ram, movably related anvil and die members, the face of the former being inclined from the direction of movement of the ram, the die member providing an abutment for the flange of a tie-plate section placed with the body plate thereof in-.

terposed between said members, means for shifting one of said members with respect to the other to bring together the die member and the body plate of the section placed between said members, and a bending punch on the ram complementing the die member and adaptech'upon the working thrust of the ram, to bend said flange over said die.

relation the flanges of tie-plate sections of the type comprising a body plate having a perpendicular flange thereon, ;said press including a frame, a reciprocable ram, an anvil, the face thereof being inclined from the di- 6. press for b' ending i'nto forming rection of movement of said ram,-a ja w spac-' 7 ing die movably spaced from the face of the anvil and providing anabutment for the flange of a tie-plate section placed'with the body plate thereof between said anvil and, die, means for shifting the die against the body plate of the section so placed, and a bending punch on the ram complementing the spacer die and adapted, upon the working thrust of said ram, to bend said flange over ing a spacing die mounted thereon forming an abutment for the flange of said tie-plate, a bending punch on said ram co-operating with said die for bending the flange of the tie-plate, and an ejector operated by' said ram for re-' movingthe formed tie-plate from said die.

8. A press for bending into jaw forming relation the flanges of tie-plate sections of the type comprising a body plate having a perpendicular flange issuing outwardly from the intermediate portionsthereof, said press including a frame, a reciprocable ram, an anvil having the face thereof inclined throughout its extent from the direction of movement of said ram and supporting a tie-plate section for movement along said inclined face, a jaw spacing die spaced from the face of the anvil and having movement at substantially right angles to the inclined face of said anvil, and providing an abutment for arresting the i movement of the flange of the tie-platesection placed upon said anvil along the inclined face thereof prior to the engagement of said jaw spacing die with the body of said tie-plate section and for bringing said tie-plate sectioninto final position relative to said anvil,'and to so hold the tie-plate section, means for shifting the die against the body of the tieplate section so placed, and a bending punch in the ram complementing the spacing die for tie-plate section for movement along the face I thereof, a jaw member movable at substan{ tially right angles to the face of said anvil and supported on said frame for clamping the punch on said ram cooperatlng wlth said die body portion of the tie-plate section in final position upon the face of said anvil, one of said members having a spacing die thereon forming an abutmentadapted to engage the flange of the tie-plate to arrest the movement thereof along the face of said anvih and to 'bring'the tie-p1ate section in final position for bending prior to the engagement of the jaw member With'the body thereof, and to so hold the tie-plate section, and a bending for bending the flange 01" the tie-plate over Bald spacing Che.

In testimony whereof, I have signed my name to this specification.

MELVIN OVESTRUD 

